I took the rex mission from the king and boone has decided not to leave the brewers shack up on the mountians.. not sure why and I need him to get by I think.. any advice? thanks..

everytime I leave he isn't there and when I come back he is still chilling down there..

rex follows me just fine though

boone came back as i visited the kahns.. during a dialog.. no rhyme or reason though.. hope it doesn't happen again..